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Finding the Fourth Proportional to 572,606.20, 858,909.30 and 404,644.60

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Solution

The fourth proportional to 572,606.20, 858,909.30 and 404,644.60 is: 606,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,606.20 : 858,909.30 = 404,644.60 : x
  2. Step 2: Convert to fraction form
    572,606.20/858,909.30 = 404,644.60/x
  3. Step 3: Cross multiply
    572,606.20x = 858,909.30 × 404,644.60
  4. Step 4: Simplify right side
    572,606.20x = 347,553,010,134.78
  5. Step 5: Solve for x
    x = 347,553,010,134.78/572,606.20
  6. Step 6: Final answer
    x = 606,966.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.